* {
  padding: 0;
  margin: 0;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none; }

html {
  font-size: 62.5%; }

body {
  font-size: 1.6rem; }

img {
  width: 100%; }

.header .codeShow {
  margin-top: -4rem; }

.codeShow {
  color: #ffffff;
  text-align: center; }

.content {
  margin-top: 3rem; }

button {
  background-color: transparent;
  outline: 0;
  border: 1px solid #ffffff;
  color: #ffffff;
  padding: 0.2rem 0.4rem;
  border-radius: 5px;
  margin-left: 0.5rem; }

button:link, button:visited, button:hover, button:active {
  color: #ffffff; }

.rule-content {
  color: #666;
  font-size: 1.5rem;
  padding: 3rem 2rem; }

.rule-content h4 {
  color: #000000;
  font-size: 1.6rem; }

.rule-content span {
  font-size: 1.2rem;
  color: #707070; }

.rule-content dl {
  margin-top: 2rem; }

.rule-content dt {
  font-weight: 700;
  color: #ff9600;
  margin-bottom: 0.5rem; }

.rule-content dd {
  font-size: 1.4rem;
  line-height: 1.5; }

#code {
  -webkit-touch-callout: default;
  -webkit-user-select: text;
  -khtml-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text; }

@media screen and (max-width: 320px) {
  html {
    font-size: 50%; } }

@media screen and (min-width: 680px) {
  html {
    font-size: 100%; } }
